As I understand it, a lot of new users seem to think that closing a question means the question is flat-out rejected, whereas in reality it's just the first step in the close-edit-reopen cycle. Right now there's a mere half sentence (in small font, too) explaining that closed questions can and should be edited. I think that could stand to be emphasized more, especially considering that new users are more likely to ask questions that will be closed because they don't yet know the standards of the community.
Official response: status-declined See comments